About: http://webisa.webdatacommons.org/447923915

Property	Value
http://www.w3.org/1999/02/22-rdf-syntax-ns#type	http://www.w3.org/ns/prov#Entity
http://www.w3.org/ns/prov#value	An etalon filter, which is a bandpass filter, is a filter made up of two partially reflective mirrors, or surfaces, separated by a certain gap, forming a cavity.
http://www.w3.org/ns/prov#wasQuotedFrom	google.com